- 4 - 
deraissa (cholcecherry) , Frazera gpeciosa. Yucca (narrow leaf), iJanmilaria 
wild chess* 
The Transition zone manmals are Cynon^s qurntsoni, Sciurus uberti, 
f 
KUtamias quadj^yittati^s^ Oallosper fUDphilus latorc^liSf Thonon^s apache, 
‘‘]s i^iinus, L^pus holzneri. 
The Transition zone birds are Sitta pygni^ea and nelsonl, Dendroica 
auduboni, Sia|ia bairdi, i*lelaneri)es p. bairdi, Dryobates i^loscopsus* 
Up;>er yororan Zone# 
This zone covers the basal slopes of the mountains and the surrounding 
* 
valleys# It comes up to about 7000 feet on cold slopes and 7500 feet on warm 
slopes (or to 8000 on steep S# W# slopes). The upper 1000 or 1500 feet of this 
zone, covering the foothills of the Tits, is forested with Pinus edulis and 
utn 
Juniperus rnoiioisperfr^ and scopulorura and contains such' shrubs and plants as 
/ u 
C£rcoCurpus puiwij'olijfs, Cowania mexicana, hhus trilobata. Yucca buccata and 
angusti folia, ^Untia (2 species of flat pad), artCmisia tridontata, and 
arbuscula, rxnd trostifolia. bower dovni in the valley 
are Atriplex canescens and confestifolia, aarcobatus and Cottonwoods 
(P. occidental Is? ) 
